AS5421
Sofia University St. Kliment Ohridski — uni-sofia.bg
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Summary
| Country |
 Bulgaria
|
| Organization | Sofia University St. Kliment Ohridski |
| Domain | uni-sofia.bg |
| Number of IPv4 | 14,080 |
| Number of IPv6 | 3.7023× 1024 |
| AS Type | Education |
| Registry | RIPE NCC |
| Allocated | October 25, 2001 (about 24 years ago) |
| Updated | December 04, 2019 (about 5 years ago) |
IP Ranges
AS5421 announces 17 IPv4 ranges and 3 IPv6 ranges.
That's a total of 14,080 IPv4 addresses and 3.7023× 1024 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 62.44.96.0/19 |
Sofia University St. Kliment Ohridski
|
8,192 | RIPE NCC | ASSIGNED PI |
| 62.44.96.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.97.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.98.0/23 |
Sofia University St. Kliment Ohridski
|
512 | RIPE NCC | ASSIGNED PI |
| 62.44.100.0/23 |
Sofia University St. Kliment Ohridski
|
512 | RIPE NCC | ASSIGNED PI |
| 62.44.102.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.103.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.104.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.105.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.106.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.109.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.110.0/23 |
Sofia University St. Kliment Ohridski
|
512 | RIPE NCC | ASSIGNED PI |
| 62.44.112.0/22 |
Sofia University St. Kliment Ohridski
|
1,024 | RIPE NCC | ASSIGNED PI |
| 62.44.116.0/23 |
Sofia University St. Kliment Ohridski
|
512 | RIPE NCC | ASSIGNED PI |
| 62.44.118.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.119.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| 62.44.126.0/24 |
Sofia University St. Kliment Ohridski
|
256 | RIPE NCC | ASSIGNED PI |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:67c:20d0::/48 |
Sofia University St. Kliment Ohridski
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2001:67c:20d0::/47 |
Sofia University St. Kliment Ohridski
|
2.4179× 1024 | RIPE NCC | ASSIGNED PI |
| 2001:67c:20d1:1000::/52 |
Sofia University St. Kliment Ohridski
|
7.5558× 1022 | RIPE NCC | ASSIGNED PI |
Peers
AS5421 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS5421 connects to the global Internet via at least 2 upstream providers. In this setup, AS5421 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS5421 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS5421's role in extending Internet access beyond its own infrastructure.